From what he knew, the basic ability of a Realm Core was to provide a significant boost in prowess by three or four levels, depending on the stage. This has always been a passive ability. More than a passive ability, he would like to call it a perk of connecting with the Realm Core successfully. It cannot be turned off unless one exits the realm, after all.
The second ability was to shield the realm from threats that descend from space above. This was the only active ability that a Realm Master could use for the realm. It activates when the Realm Master wishes to defend the realm and Will it.
The abilities after this all require the sacrifice of the lifespan of the Realm Core in various degrees.
With ability number three, the Realm Core Spirit was capable of bestowing a significant increase in cultivation to one lifeform by one minor stage each month.
